// Copyright 2007, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

// Google Mock - a framework for writing C++ mock classes.
//
// This file tests the built-in actions in gmock-more-actions.h.

#include "gmock/gmock-more-actions.h"

#include <functional>
#include <sstream>
#include <string>
#include "gmock/gmock.h"
#include "gtest/gtest.h"
#include "gtest/internal/gtest-linked_ptr.h"

namespace testing {
namespace gmock_more_actions_test {

using ::std::plus;
using ::std::string;
using testing::get;
using testing::make_tuple;
using testing::tuple;
using testing::tuple_element;
using testing::_;
using testing::Action;
using testing::ActionInterface;
using testing::DeleteArg;
using testing::Invoke;
using testing::Return;
using testing::ReturnArg;
using testing::ReturnPointee;
using testing::SaveArg;
using testing::SaveArgPointee;
using testing::SetArgReferee;
using testing::StaticAssertTypeEq;
using testing::Unused;
using testing::WithArg;
using testing::WithoutArgs;
using testing::internal::linked_ptr;

// For suppressing compiler warnings on conversion possibly losing precision.
inline short Short(short n)
{
    return n;
} // NOLINT
inline char Char(char ch)
{
    return ch;
}

// Sample functions and functors for testing Invoke() and etc.
int Nullary()
{
    return 1;
}

class NullaryFunctor
{
public:
    int operator()() { return 2; }
};

bool g_done = false;
void VoidNullary()
{
    g_done = true;
}

class VoidNullaryFunctor
{
public:
    void operator()() { g_done = true; }
};

bool Unary(int x)
{
    return x < 0;
}

const char *Plus1(const char *s)
{
    return s + 1;
}

void VoidUnary(int /* n */)
{
    g_done = true;
}

bool ByConstRef(const std::string &s)
{
    return s == "Hi";
}

const double g_double = 0;
bool ReferencesGlobalDouble(const double &x)
{
    return &x == &g_double;
}

std::string ByNonConstRef(std::string &s)
{
    return s += "+";
} // NOLINT

struct UnaryFunctor {
    int operator()(bool x) { return x ? 1 : -1; }
};

const char *Binary(const char *input, short n)
{
    return input + n;
} // NOLINT

void VoidBinary(int, char)
{
    g_done = true;
}

int Ternary(int x, char y, short z)
{
    return x + y + z;
} // NOLINT

void VoidTernary(int, char, bool)
{
    g_done = true;
}

int SumOf4(int a, int b, int c, int d)
{
    return a + b + c + d;
}

int SumOfFirst2(int a, int b, Unused, Unused)
{
    return a + b;
}

void VoidFunctionWithFourArguments(char, int, float, double)
{
    g_done = true;
}

std::string Concat4(const char *s1, const char *s2, const char *s3,
                    const char *s4)
{
    return std::string(s1) + s2 + s3 + s4;
}

int SumOf5(int a, int b, int c, int d, int e)
{
    return a + b + c + d + e;
}

struct SumOf5Functor {
    int operator()(int a, int b, int c, int d, int e)
    {
        return a + b + c + d + e;
    }
};

std::string Concat5(const char *s1, const char *s2, const char *s3,
                    const char *s4, const char *s5)
{
    return std::string(s1) + s2 + s3 + s4 + s5;
}

int SumOf6(int a, int b, int c, int d, int e, int f)
{
    return a + b + c + d + e + f;
}

struct SumOf6Functor {
    int operator()(int a, int b, int c, int d, int e, int f)
    {
        return a + b + c + d + e + f;
    }
};

std::string Concat6(const char *s1, const char *s2, const char *s3,
                    const char *s4, const char *s5, const char *s6)
{
    return std::string(s1) + s2 + s3 + s4 + s5 + s6;
}

std::string Concat7(const char *s1, const char *s2, const char *s3,
                    const char *s4, const char *s5, const char *s6,
                    const char *s7)
{
    return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7;
}

std::string Concat8(const char *s1, const char *s2, const char *s3,
                    const char *s4, const char *s5, const char *s6,
                    const char *s7, const char *s8)
{
    return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8;
}

std::string Concat9(const char *s1, const char *s2, const char *s3,
                    const char *s4, const char *s5, const char *s6,
                    const char *s7, const char *s8, const char *s9)
{
    return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9;
}

std::string Concat10(const char *s1, const char *s2, const char *s3,
                     const char *s4, const char *s5, const char *s6,
                     const char *s7, const char *s8, const char *s9,
                     const char *s10)
{
    return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10;
}

class Foo
{
public:
    Foo()
        : value_(123)
    {
    }

    int Nullary() const { return value_; }

    short Unary(long x) { return static_cast<short>(value_ + x); } // NOLINT

    std::string Binary(const std::string &str, char c) const { return str + c; }

    int Ternary(int x, bool y, char z) { return value_ + x + y * z; }

    int SumOf4(int a, int b, int c, int d) const
    {
        return a + b + c + d + value_;
    }

    int SumOfLast2(Unused, Unused, int a, int b) const { return a + b; }

    int SumOf5(int a, int b, int c, int d, int e) { return a + b + c + d + e; }

    int SumOf6(int a, int b, int c, int d, int e, int f)
    {
        return a + b + c + d + e + f;
    }

    std::string Concat7(const char *s1, const char *s2, const char *s3,
                        const char *s4, const char *s5, const char *s6,
                        const char *s7)
    {
        return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7;
    }

    std::string Concat8(const char *s1, const char *s2, const char *s3,
                        const char *s4, const char *s5, const char *s6,
                        const char *s7, const char *s8)
    {
        return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8;
    }

    std::string Concat9(const char *s1, const char *s2, const char *s3,
                        const char *s4, const char *s5, const char *s6,
                        const char *s7, const char *s8, const char *s9)
    {
        return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9;
    }

    std::string Concat10(const char *s1, const char *s2, const char *s3,
                         const char *s4, const char *s5, const char *s6,
                         const char *s7, const char *s8, const char *s9,
                         const char *s10)
    {
        return std::string(s1) + s2 + s3 + s4 + s5 + s6 + s7 + s8 + s9 + s10;
    }

private:
    int value_;
};

// Tests using Invoke() with a nullary function.
TEST(InvokeTest, Nullary)
{
    Action<int()> a = Invoke(Nullary); // NOLINT
    EXPECT_EQ(1, a.Perform(make_tuple()));
}

// Tests using Invoke() with a unary function.
TEST(InvokeTest, Unary)
{
    Action<bool(int)> a = Invoke(Unary); // NOLINT
    EXPECT_FALSE(a.Perform(make_tuple(1)));
    EXPECT_TRUE(a.Perform(make_tuple(-1)));
}

// Tests using Invoke() with a binary function.
TEST(InvokeTest, Binary)
{
    Action<const char *(const char *, short)> a = Invoke(Binary); // NOLINT
    const char *p = "Hello";
    EXPECT_EQ(p + 2, a.Perform(make_tuple(p, Short(2))));
}

// Tests using Invoke() with a ternary function.
TEST(InvokeTest, Ternary)
{
    Action<int(int, char, short)> a = Invoke(Ternary); // NOLINT
    EXPECT_EQ(6, a.Perform(make_tuple(1, '\2', Short(3))));
}

// Tests using Invoke() with a 4-argument function.
TEST(InvokeTest, FunctionThatTakes4Arguments)
{
    Action<int(int, int, int, int)> a = Invoke(SumOf4); // NOLINT
    EXPECT_EQ(1234, a.Perform(make_tuple(1000, 200, 30, 4)));
}

// Tests using Invoke() with a 5-argument function.
TEST(InvokeTest, FunctionThatTakes5Arguments)
{
    Action<int(int, int, int, int, int)> a = Invoke(SumOf5); // NOLINT
    EXPECT_EQ(12345, a.Perform(make_tuple(10000, 2000, 300, 40, 5)));
}

// Tests using Invoke() with a 6-argument function.
TEST(InvokeTest, FunctionThatTakes6Arguments)
{
    Action<int(int, int, int, int, int, int)> a = Invoke(SumOf6); // NOLINT
    EXPECT_EQ(123456, a.Perform(make_tuple(100000, 20000, 3000, 400, 50, 6)));
}

// A helper that turns the type of a C-string literal from const
// char[N] to const char*.
inline const char *CharPtr(const char *s)
{
    return s;
}

// Tests using Invoke() with a 7-argument function.
TEST(InvokeTest, FunctionThatTakes7Arguments)
{
    Action<std::string(const char *, const char *, const char *, const char *,
                       const char *, const char *, const char *)>
        a = Invoke(Concat7);
    EXPECT_EQ("1234567",
              a.Perform(make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                   CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                   CharPtr("7"))));
}

// Tests using Invoke() with a 8-argument function.
TEST(InvokeTest, FunctionThatTakes8Arguments)
{
    Action<std::string(const char *, const char *, const char *, const char *,
                       const char *, const char *, const char *, const char *)>
        a = Invoke(Concat8);
    EXPECT_EQ("12345678",
              a.Perform(make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                   CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                   CharPtr("7"), CharPtr("8"))));
}

// Tests using Invoke() with a 9-argument function.
TEST(InvokeTest, FunctionThatTakes9Arguments)
{
    Action<std::string(const char *, const char *, const char *, const char *,
                       const char *, const char *, const char *, const char *,
                       const char *)>
        a = Invoke(Concat9);
    EXPECT_EQ("123456789",
              a.Perform(make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                   CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                   CharPtr("7"), CharPtr("8"), CharPtr("9"))));
}

// Tests using Invoke() with a 10-argument function.
TEST(InvokeTest, FunctionThatTakes10Arguments)
{
    Action<std::string(const char *, const char *, const char *, const char *,
                       const char *, const char *, const char *, const char *,
                       const char *, const char *)>
        a = Invoke(Concat10);
    EXPECT_EQ("1234567890",
              a.Perform(make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                   CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                   CharPtr("7"), CharPtr("8"), CharPtr("9"),
                                   CharPtr("0"))));
}

// Tests using Invoke() with functions with parameters declared as Unused.
TEST(InvokeTest, FunctionWithUnusedParameters)
{
    Action<int(int, int, double, const std::string &)> a1 = Invoke(SumOfFirst2);
    tuple<int, int, double, std::string> dummy =
        make_tuple(10, 2, 5.6, std::string("hi"));
    EXPECT_EQ(12, a1.Perform(dummy));

    Action<int(int, int, bool, int *)> a2 =
        Invoke(SumOfFirst2);
    EXPECT_EQ(23, a2.Perform(make_tuple(20, 3, true, static_cast<int *>(NULL))));
}

// Tests using Invoke() with methods with parameters declared as Unused.
TEST(InvokeTest, MethodWithUnusedParameters)
{
    Foo foo;
    Action<int(std::string, bool, int, int)> a1 = Invoke(&foo, &Foo::SumOfLast2);
    EXPECT_EQ(12, a1.Perform(make_tuple(CharPtr("hi"), true, 10, 2)));

    Action<int(char, double, int, int)> a2 =
        Invoke(&foo, &Foo::SumOfLast2);
    EXPECT_EQ(23, a2.Perform(make_tuple('a', 2.5, 20, 3)));
}

// Tests using Invoke() with a functor.
TEST(InvokeTest, Functor)
{
    Action<long(long, int)> a = Invoke(plus<long>()); // NOLINT
    EXPECT_EQ(3L, a.Perform(make_tuple(1, 2)));
}

// Tests using Invoke(f) as an action of a compatible type.
TEST(InvokeTest, FunctionWithCompatibleType)
{
    Action<long(int, short, char, bool)> a = Invoke(SumOf4); // NOLINT
    EXPECT_EQ(4321, a.Perform(make_tuple(4000, Short(300), Char(20), true)));
}

// Tests using Invoke() with an object pointer and a method pointer.

// Tests using Invoke() with a nullary method.
TEST(InvokeMethodTest, Nullary)
{
    Foo foo;
    Action<int()> a = Invoke(&foo, &Foo::Nullary); // NOLINT
    EXPECT_EQ(123, a.Perform(make_tuple()));
}

// Tests using Invoke() with a unary method.
TEST(InvokeMethodTest, Unary)
{
    Foo foo;
    Action<short(long)> a = Invoke(&foo, &Foo::Unary); // NOLINT
    EXPECT_EQ(4123, a.Perform(make_tuple(4000)));
}

// Tests using Invoke() with a binary method.
TEST(InvokeMethodTest, Binary)
{
    Foo foo;
    Action<std::string(const std::string &, char)> a = Invoke(&foo, &Foo::Binary);
    std::string s("Hell");
    tuple<std::string, char> dummy = make_tuple(s, 'o');
    EXPECT_EQ("Hello", a.Perform(dummy));
}

// Tests using Invoke() with a ternary method.
TEST(InvokeMethodTest, Ternary)
{
    Foo foo;
    Action<int(int, bool, char)> a = Invoke(&foo, &Foo::Ternary); // NOLINT
    EXPECT_EQ(1124, a.Perform(make_tuple(1000, true, Char(1))));
}

// Tests using Invoke() with a 4-argument method.
TEST(InvokeMethodTest, MethodThatTakes4Arguments)
{
    Foo foo;
    Action<int(int, int, int, int)> a = Invoke(&foo, &Foo::SumOf4); // NOLINT
    EXPECT_EQ(1357, a.Perform(make_tuple(1000, 200, 30, 4)));
}

// Tests using Invoke() with a 5-argument method.
TEST(InvokeMethodTest, MethodThatTakes5Arguments)
{
    Foo foo;
    Action<int(int, int, int, int, int)> a = Invoke(&foo, &Foo::SumOf5); // NOLINT
    EXPECT_EQ(12345, a.Perform(make_tuple(10000, 2000, 300, 40, 5)));
}

// Tests using Invoke() with a 6-argument method.
TEST(InvokeMethodTest, MethodThatTakes6Arguments)
{
    Foo foo;
    Action<int(int, int, int, int, int, int)> a = // NOLINT
        Invoke(&foo, &Foo::SumOf6);
    EXPECT_EQ(123456, a.Perform(make_tuple(100000, 20000, 3000, 400, 50, 6)));
}

// Tests using Invoke() with a 7-argument method.
TEST(InvokeMethodTest, MethodThatTakes7Arguments)
{
    Foo foo;
    Action<std::string(const char *, const char *, const char *, const char *,
                       const char *, const char *, const char *)>
        a = Invoke(&foo, &Foo::Concat7);
    EXPECT_EQ("1234567",
              a.Perform(make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                   CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                   CharPtr("7"))));
}

// Tests using Invoke() with a 8-argument method.
TEST(InvokeMethodTest, MethodThatTakes8Arguments)
{
    Foo foo;
    Action<std::string(const char *, const char *, const char *, const char *,
                       const char *, const char *, const char *, const char *)>
        a = Invoke(&foo, &Foo::Concat8);
    EXPECT_EQ("12345678",
              a.Perform(make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                   CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                   CharPtr("7"), CharPtr("8"))));
}

// Tests using Invoke() with a 9-argument method.
TEST(InvokeMethodTest, MethodThatTakes9Arguments)
{
    Foo foo;
    Action<std::string(const char *, const char *, const char *, const char *,
                       const char *, const char *, const char *, const char *,
                       const char *)>
        a = Invoke(&foo, &Foo::Concat9);
    EXPECT_EQ("123456789",
              a.Perform(make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                   CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                   CharPtr("7"), CharPtr("8"), CharPtr("9"))));
}

// Tests using Invoke() with a 10-argument method.
TEST(InvokeMethodTest, MethodThatTakes10Arguments)
{
    Foo foo;
    Action<std::string(const char *, const char *, const char *, const char *,
                       const char *, const char *, const char *, const char *,
                       const char *, const char *)>
        a = Invoke(&foo, &Foo::Concat10);
    EXPECT_EQ("1234567890",
              a.Perform(make_tuple(CharPtr("1"), CharPtr("2"), CharPtr("3"),
                                   CharPtr("4"), CharPtr("5"), CharPtr("6"),
                                   CharPtr("7"), CharPtr("8"), CharPtr("9"),
                                   CharPtr("0"))));
}

// Tests using Invoke(f) as an action of a compatible type.
TEST(InvokeMethodTest, MethodWithCompatibleType)
{
    Foo foo;
    Action<long(int, short, char, bool)> a = // NOLINT
        Invoke(&foo, &Foo::SumOf4);
    EXPECT_EQ(4444, a.Perform(make_tuple(4000, Short(300), Char(20), true)));
}

// Tests using WithoutArgs with an action that takes no argument.
TEST(WithoutArgsTest, NoArg)
{
    Action<int(int n)> a = WithoutArgs(Invoke(Nullary)); // NOLINT
    EXPECT_EQ(1, a.Perform(make_tuple(2)));
}

// Tests using WithArg with an action that takes 1 argument.
TEST(WithArgTest, OneArg)
{
    Action<bool(double x, int n)> b = WithArg<1>(Invoke(Unary)); // NOLINT
    EXPECT_TRUE(b.Perform(make_tuple(1.5, -1)));
    EXPECT_FALSE(b.Perform(make_tuple(1.5, 1)));
}

TEST(ReturnArgActionTest, WorksForOneArgIntArg0)
{
    const Action<int(int)> a = ReturnArg<0>();
    EXPECT_EQ(5, a.Perform(make_tuple(5)));
}

TEST(ReturnArgActionTest, WorksForMultiArgBoolArg0)
{
    const Action<bool(bool, bool, bool)> a = ReturnArg<0>();
    EXPECT_TRUE(a.Perform(make_tuple(true, false, false)));
}

TEST(ReturnArgActionTest, WorksForMultiArgStringArg2)
{
    const Action<std::string(int, int, std::string, int)> a = ReturnArg<2>();
    EXPECT_EQ("seven", a.Perform(make_tuple(5, 6, std::string("seven"), 8)));
}

TEST(SaveArgActionTest, WorksForSameType)
{
    int result = 0;
    const Action<void(int n)> a1 = SaveArg<0>(&result);
    a1.Perform(make_tuple(5));
    EXPECT_EQ(5, result);
}

TEST(SaveArgActionTest, WorksForCompatibleType)
{
    int result = 0;
    const Action<void(bool, char)> a1 = SaveArg<1>(&result);
    a1.Perform(make_tuple(true, 'a'));
    EXPECT_EQ('a', result);
}

TEST(SaveArgPointeeActionTest, WorksForSameType)
{
    int result = 0;
    const int value = 5;
    const Action<void(const int *)> a1 = SaveArgPointee<0>(&result);
    a1.Perform(make_tuple(&value));
    EXPECT_EQ(5, result);
}

TEST(SaveArgPointeeActionTest, WorksForCompatibleType)
{
    int result = 0;
    char value = 'a';
    const Action<void(bool, char *)> a1 = SaveArgPointee<1>(&result);
    a1.Perform(make_tuple(true, &value));
    EXPECT_EQ('a', result);
}

TEST(SaveArgPointeeActionTest, WorksForLinkedPtr)
{
    int result = 0;
    linked_ptr<int> value(new int(5));
    const Action<void(linked_ptr<int>)> a1 = SaveArgPointee<0>(&result);
    a1.Perform(make_tuple(value));
    EXPECT_EQ(5, result);
}

TEST(SetArgRefereeActionTest, WorksForSameType)
{
    int value = 0;
    const Action<void(int &)> a1 = SetArgReferee<0>(1);
    a1.Perform(tuple<int &>(value));
    EXPECT_EQ(1, value);
}

TEST(SetArgRefereeActionTest, WorksForCompatibleType)
{
    int value = 0;
    const Action<void(int, int &)> a1 = SetArgReferee<1>('a');
    a1.Perform(tuple<int, int &>(0, value));
    EXPECT_EQ('a', value);
}

TEST(SetArgRefereeActionTest, WorksWithExtraArguments)
{
    int value = 0;
    const Action<void(bool, int, int &, const char *)> a1 = SetArgReferee<2>('a');
    a1.Perform(tuple<bool, int, int &, const char *>(true, 0, value, "hi"));
    EXPECT_EQ('a', value);
}

// A class that can be used to verify that its destructor is called: it will set
// the bool provided to the constructor to true when destroyed.
class DeletionTester
{
public:
    explicit DeletionTester(bool *is_deleted)
        : is_deleted_(is_deleted)
    {
        // Make sure the bit is set to false.
        *is_deleted_ = false;
    }

    ~DeletionTester()
    {
        *is_deleted_ = true;
    }

private:
    bool *is_deleted_;
};

TEST(DeleteArgActionTest, OneArg)
{
    bool is_deleted = false;
    DeletionTester *t = new DeletionTester(&is_deleted);
    const Action<void(DeletionTester *)> a1 = DeleteArg<0>(); // NOLINT
    EXPECT_FALSE(is_deleted);
    a1.Perform(make_tuple(t));
    EXPECT_TRUE(is_deleted);
}

TEST(DeleteArgActionTest, TenArgs)
{
    bool is_deleted = false;
    DeletionTester *t = new DeletionTester(&is_deleted);
    const Action<void(bool, int, int, const char *, bool,
                      int, int, int, int, DeletionTester *)>
        a1 = DeleteArg<9>();
    EXPECT_FALSE(is_deleted);
    a1.Perform(make_tuple(true, 5, 6, CharPtr("hi"), false, 7, 8, 9, 10, t));
    EXPECT_TRUE(is_deleted);
}

#if GTEST_HAS_EXCEPTIONS

TEST(ThrowActionTest, ThrowsGivenExceptionInVoidFunction)
{
    const Action<void(int n)> a = Throw('a');
    EXPECT_THROW(a.Perform(make_tuple(0)), char);
}

class MyException
{
};

TEST(ThrowActionTest, ThrowsGivenExceptionInNonVoidFunction)
{
    const Action<double(char ch)> a = Throw(MyException());
    EXPECT_THROW(a.Perform(make_tuple('0')), MyException);
}

TEST(ThrowActionTest, ThrowsGivenExceptionInNullaryFunction)
{
    const Action<double()> a = Throw(MyException());
    EXPECT_THROW(a.Perform(make_tuple()), MyException);
}

#endif // GTEST_HAS_EXCEPTIONS

// Tests that SetArrayArgument<N>(first, last) sets the elements of the array
// pointed to by the N-th (0-based) argument to values in range [first, last).
TEST(SetArrayArgumentTest, SetsTheNthArray)
{
    typedef void MyFunction(bool, int *, char *);
    int numbers[] = {1, 2, 3};
    Action<MyFunction> a = SetArrayArgument<1>(numbers, numbers + 3);

    int n[4] = {};
    int *pn = n;
    char ch[4] = {};
    char *pch = ch;
    a.Perform(make_tuple(true, pn, pch));
    EXPECT_EQ(1, n[0]);
    EXPECT_EQ(2, n[1]);
    EXPECT_EQ(3, n[2]);
    EXPECT_EQ(0, n[3]);
    EXPECT_EQ('\0', ch[0]);
    EXPECT_EQ('\0', ch[1]);
    EXPECT_EQ('\0', ch[2]);
    EXPECT_EQ('\0', ch[3]);

    // Tests first and last are iterators.
    std::string letters = "abc";
    a = SetArrayArgument<2>(letters.begin(), letters.end());
    std::fill_n(n, 4, 0);
    std::fill_n(ch, 4, '\0');
    a.Perform(make_tuple(true, pn, pch));
    EXPECT_EQ(0, n[0]);
    EXPECT_EQ(0, n[1]);
    EXPECT_EQ(0, n[2]);
    EXPECT_EQ(0, n[3]);
    EXPECT_EQ('a', ch[0]);
    EXPECT_EQ('b', ch[1]);
    EXPECT_EQ('c', ch[2]);
    EXPECT_EQ('\0', ch[3]);
}

// Tests SetArrayArgument<N>(first, last) where first == last.
TEST(SetArrayArgumentTest, SetsTheNthArrayWithEmptyRange)
{
    typedef void MyFunction(bool, int *);
    int numbers[] = {1, 2, 3};
    Action<MyFunction> a = SetArrayArgument<1>(numbers, numbers);

    int n[4] = {};
    int *pn = n;
    a.Perform(make_tuple(true, pn));
    EXPECT_EQ(0, n[0]);
    EXPECT_EQ(0, n[1]);
    EXPECT_EQ(0, n[2]);
    EXPECT_EQ(0, n[3]);
}

// Tests SetArrayArgument<N>(first, last) where *first is convertible
// (but not equal) to the argument type.
TEST(SetArrayArgumentTest, SetsTheNthArrayWithConvertibleType)
{
    typedef void MyFunction(bool, int *);
    char chars[] = {97, 98, 99};
    Action<MyFunction> a = SetArrayArgument<1>(chars, chars + 3);

    int codes[4] = {111, 222, 333, 444};
    int *pcodes = codes;
    a.Perform(make_tuple(true, pcodes));
    EXPECT_EQ(97, codes[0]);
    EXPECT_EQ(98, codes[1]);
    EXPECT_EQ(99, codes[2]);
    EXPECT_EQ(444, codes[3]);
}

// Test SetArrayArgument<N>(first, last) with iterator as argument.
TEST(SetArrayArgumentTest, SetsTheNthArrayWithIteratorArgument)
{
    typedef void MyFunction(bool, std::back_insert_iterator<std::string>);
    std::string letters = "abc";
    Action<MyFunction> a = SetArrayArgument<1>(letters.begin(), letters.end());

    std::string s;
    a.Perform(make_tuple(true, back_inserter(s)));
    EXPECT_EQ(letters, s);
}

TEST(ReturnPointeeTest, Works)
{
    int n = 42;
    const Action<int()> a = ReturnPointee(&n);
    EXPECT_EQ(42, a.Perform(make_tuple()));

    n = 43;
    EXPECT_EQ(43, a.Perform(make_tuple()));
}

} // namespace gmock_more_actions_test
} // namespace testing
